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Unit 1 Statistics

Unit 1 Test Review (Part 1)

QuestionAnswer
Identify the population and the sample: "A survey of 1353 American households found that 18% of the households own a computer." population: All American households Sample: the 1353 American households surveyed
Identify the population and the sample: "A recent survey of 2625 elementary school children found that 28% of the children could be classified obese." Population: All elementary school children Sample: the 2625 elementary school children surveyed
Identify the population and the sample: "The average weight of every sixth person entering the mall within a 3 hour period." Population: All people entering the mall during the 3 hour time period Sample: Every 6th person entering the mall during the 3 hour time period
Determine whether the numerical value is a parameter or a statistic: "A recent survey by the alumni of a major university indicated that the average salary of 10,000 of its 300,000 graduates was 125,000. Statistic: The part of the 300,000 graduates that were surveyed.
Determine whether the numerical value is a parameter or a statistic: "The average salary of all assembly-line employees at a certain car manufacturer is $33,000." Parameter: All assembly-line employees were included in the study
Determine whether the numerical value is a parameter or a statistic: "The average late fee for 360 credit card holders was found to be $56.75. Statistic: 360 credit cards were examined (not all)
Identify the population, sample, population parameters, and sample statistics: In a USA Today Internet poll, readers responded voluntarily to the question, "Do you consume at least one caffeinated beverage every day?" population: all readers of USA today sample: volunteers that responded to the survey population parameter: percent who have at least one caffeinated drink among readers of USA Today sample statistic: percent who have at least one caffeinated drink am
Identify the population, sample, population parameters, and sample statistics: Astronomers typically determine the distance to a galaxy by measuring the distances to just a few stars within it and taking the mean (average) of these distance measurements. Population: All the stars in the galaxy Sample: the few stars selected for measurement Population Parameter: Mean (average) of distances between all stars and Earth Sample Statistics: Mean (average) of distances between the stars in the sample and E
Identify whether the statement describes inferential statistics or descriptive statistics: "The average age of the students in a statistics class is 21 years." Descriptive
Identify whether the statement describes inferential statistics or descriptive statistics: "The chances of winning the California Lottery are one chance in 22 million." Inferential
Identify whether the statement describes inferential statistics or descriptive statistics: "There is a relationship between smoking cigarettes and getting emphysema." Inferential
Identify whether the statement describes inferential statistics or descriptive statistics: "From past figures, it is predicted that 39% of the registered voters in California will vote in the June primary." Inferential
Determine whether the data is qualitative or quantitative: "The colors of automobiles on a used car lot." Qualitative
Determine whether the data is qualitative or quantitative: "The numbers on the shirts of a girl's soccer team." Qualitative
Determine whether the data is qualitative or quantitative: "The number of seats in a movie theater." Quantitative
Determine whether the data is qualitative or quantitative: "A list of house numbers on you street." Qualitative
Determine whether the data is qualitative or quantitative: "The ages of a sample of 350 employees of a large hospital." Quantitative
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Hair color of women on a high school tennis team" Nominal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Numbers on the shirts of a girl's soccer team" Nominal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Ages of students in a statistics class" Ratio
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Temperatures of 22 selected refrigerators" Interval
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Number of milligrams of tar in 28 cigarettes" Ratio
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Number of pages in your statistics book" Ratio
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "Marriage status of the faculty at the local community college" Nominal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "List of 1,247 social security numbers" Nominal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "The ratings of a movie ranging from "poor" to "good" to "excellent" Ordinal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "The final grades (A,B,C,D, & F) for students in a chemistry class" Ordinal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "The annual salaries for all teachers in Utah" Ratio
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "List of zip codes for Chicago" Nominal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "The nationalities listed in a recent survey" Nominal
Identify the data set's level of measurement (Nominal, Ordinal, Interval, or Ratio): "The amount of fat (in grams) in 44 cookies" Ratio
Created by: lkwilliams
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